* {
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
}

ul li {
    list-style: none;
}

@font-face {
    font-family: 'iconfont';
    src: url('../font_4750212_nr20k3ure2/iconfont.woff2') format('woff2'),
         url('../font_4750212_nr20k3ure2/iconfont.woff') format('woff'),
         url('../font_4750212_nr20k3ure2/iconfont.ttf') format('truetype');
  }

  .iconfont {
    font-family: "iconfont" !important;
    font-size: 16px;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

@media (max-width: 700px) {
    .head .nav {
        opacity: 0;
    }

    #end {
        width: 100%;
        height: 80px;
        position: fixed;
        bottom: 0;
        background-color: #cbd5e1;
        display: flex;
        /* display: block; */
        justify-content: space-between;
    }

    #end li {
        /* display: left; */
        height: 80px;
        line-height: 80px;
        font-size: 24px;
    }
}
#end {
    /* display: none; */
}
/* 头部开始 */

.head {
    height: 118px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 10% 80px;
}

.head .logo img {
    width: 120px;
    
}

.head .nav {
    width: 401px;
    height: 58px;
    line-height: 50px;
    border-radius: 40px;
    background-color: #e9e9e9;
    display: flex;
    justify-content: space-around;
    align-items: center;

}

.head .nav li{
    width: 126px;
    height: 48px;
    text-align: center;
    font-size: 20px;
    background: #e9e9e9;
    border-radius: 25px;
}

.head .nav li:hover {
    background-color: white;
}

.head .search {
    width: 200px;
    height: 48px;
    /* background-color: yellow; */
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.head .search input {
    width: 116px;
    height: 48px;
    outline-style: none;
    background-color: rgba(255, 255, 255,0);
    border: 1px  solid #cbd5e1;
    border-radius: 40px;
    font-size: 26px;
    padding-left: 10px;
}

.head .search input:hover,
.head .search input:last-child:hover {
    background-color: black;
    color: white;
}

.head .search input:last-child {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0);
    border: 1px  sloid #cbd5e1;
    padding: 0;
}

/* 头部结束 */

/* 中间部分 */
.banner {
    margin: 0 auto;
    width: 1400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.banner .logo {
    /* margin-top: 100px; */
    display: flex;
    justify-content: center;
}

.banner .logo img{
    width: 256px;
    height: 60px;
    margin-left: -70px;
    margin-bottom: 20px;
    /* margin: 0 auto; */
}

.banner .film {
    font-size: 18px;
    text-align: center;
    margin-bottom: 20px;
    margin-left: -70px;
}

.banner .search {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.banner .search input {
    width: 700px;
    height: 32px;
    border: 1px solid #cbd5e1;
    outline-style: none;
    padding: 8px 16px 8px 48px;
    font-size: 26px;
    border-radius: 40px;
}

.banner .home {
    text-align: center;
}

.banner .home input {
    width: 136px;
    height: 48px;
    background-color: black;
    color: aliceblue;
    font-size: 24px;
    border-radius: 30px;
}

.banner .problem {
    width: 704px;
    height: 124px;
    margin: 144px auto 96px;
}

.banner .problem h2 {
    width: 704px;
    /* height: 36px; */
    text-align: center;
    font-size: 26px;
    margin-bottom: 10px;
}

.banner .problem p {
    width: 704px;
    /* height: 60px; */
    font-size: 14px;
    line-height: 22px;
    letter-spacing: 2px;
    text-align: center;
}

.banner .problem .answer {
    width: 654px;
    height: 28px;
    padding: 20px 24px;
    background-color: #e7edf3;
    border-radius: 20px;
    margin-top: 48px;  
    display: flex;
    justify-content: space-between;
}

.banner .problem .answer div {
    font-size: 18px;
}

.banner .problem input {
    display: none;
}

.banner .problem p:last-child{
    width: 654px;
    background-color: #e7edf3;
    border-radius: 0 0 20px 20px;
    padding: 35px 24px 24px 24px;
    margin-top: -20px;
    color: #777;
    /* display: none; */
}

.banner .problem  :checked + p{
    display: none;
}




.tail {
    width: 1216px;
    height: 108px;
    margin: 96px auto 200px;
}

.tail .logo{
    text-align: center;
    margin-bottom: 20px;
}

.tail .logo img {
    width: 120px;
    height: 28px;
}

.tail .nav {
    width: 300px;
    height: 24px;
    display: flex;
    justify-content: space-between;
    margin: 0 auto;
}

.tail .nav li {
    font-size: 18px;
    font-weight: 700;
}

.tail .nav li a {
    color: black;
}

.tail .end {
    width: 380px;
    height: 18px;
    display: flex;
    justify-content: space-between;
    margin: 15px auto 0px;
}

.tail .end li {
    font-size: 18px;
    font-weight: 400;
    color: #808ba2;
}